H_(2)/CO_(2)气体分离用聚苯并咪唑膜的研究进展  

Recent Advances in Polybenzimidazole Membranes for H_(2)/CO_(2)Gas Separation

作　　者：武佳宁 WU Jia-ning(Sinopec(Beijing)Research Institute of Chemical Industry Co.,Ltd.,Beijing 100013,China)

机构地区：[1]中石化(北京)化工研究院有限公司,北京100013

出　　处：《高分子通报》2025年第1期75-89,共15页Polymer Bulletin

摘　　要：H_(2)/CO_(2)气体分离膜技术具有高能效、维护简单等优点,在高纯氢气生产领域有着巨大的潜力。在众多气体分离膜中,仅有小部分能够耐受氢气生产中的严苛环境,并兼具高氢气渗透性能和高H_(2)/CO_(2)选择性。聚苯并咪唑(PBI)因有着优异的化学稳定性和热稳定性,以及固有的分子筛分能力,已成为高温H_(2)/CO_(2)分离膜的备选材料。本文综述了近年来H_(2)/CO_(2)分离用PBI膜的研究进展,包括PBI交联膜、PBI共混膜、PBI混合基质膜、PBI/超分子复合膜、PBI中空纤维膜和基于PBI的碳分子筛膜,介绍了杂质气体对PBI膜分离性能的影响,分析了各类PBI膜面临的挑战,并对H_(2)/CO_(2)分离用PBI膜的未来发展进行了展望。H_(2)/CO_(2)separation membrane technology enjoys the advantages of high energy efficiency and simple maintenance,and has great potential in the field of high purity hydrogen production.Among various gas separation membranes,only a few can withstand the harsh environment in hydrogen production and have high hydrogen permeability as well as high H_(2)/CO_(2)selectivity.Polybenzimidazole(PBI),due to its excellent chemical and thermal stability,as well as intrinsic molecular sieving ability,has emerged as a candidate material for fabricating high temperature H_(2)/CO_(2)separation membranes.In this review,the recent research progress of PBI-based membranes for H_(2)/CO_(2)separation is reviewed,including PBI-based cross-linked membranes,PBI-based blend membranes,PBI-based mixed matrix membranes,PBI/supramolecular composite membranes,PBI-based hollow fiber membranes and PBI-based carbon molecular sieve membranes.The effect of gas impurity on the separation performance of PBI membranes is introduced.The challenges for various PBI-based H_(2)/CO_(2)separation membranes are analyzed.Further development prospects are also provided.

关 键 词：聚苯并咪唑 气体分离 碳捕集 氢气纯化 

分 类 号：TQ051.893[化学工程]